package com.example.restaurant.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

/*
        全局异常处理
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    /*
        异常处理方法
        1.监听所需要的类
        @ControllerAdvice(annotations = {RestController.class, Controller.class})
        2.确认所需要捕捉的异常
        @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler( SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] strings = ex.getMessage().split(" ");
            String msg = strings[2] + "已存在";
            return R.error(msg);
        }
        return R.error("未知错误");
    }



}
